High-School Student Research Handbook / Dr. Darci J. Harland
Page 9:

"....Usually students either have no idea what they want to study, or they have a very specific idea of what it is that interests them. I'd like to warn you to stay away from each extreme. It is best to have a general idea of what you wantto study, that way you can focus your research, but you won't be so narrow in your thinking that you miss a great research opportunity... Here are some general tips of how to go about generating research ideas.
1. Choose a topic that is interesting to you.
2. Search for ideas on the internet. Look not only for research projects but also for general information about the entity you might study and the (variables) you might manipulate.
3. Reflect on a content related topic you heard about on television and piqued your interest.
4. Think about issues your family deals with. Maybe there are personal reasons why you might be interested in a specific topic.
5. Flip through a science/math book, encyclopedias or surf the Internet for inspiration."
6. Flip through any other materials (posters, brochures, flyers, etc.) that your teacher has collected.
7. Open the file attached below ("Special Topics-Research Questions"). It offers a workable tool to lead you to workable research questions.